Program using Qt, OpenCV runs fine when started from VS, but running the executable ordinarily crashes when...
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I'm trying to deploy my C++ program. Every functionality of it works if I run the program from the VS IDE (release mode). When I ordinarily run the same executable, the main window comes up fine and its non-OpenCV functionality works; but when I try to open a picture and have the program use OpenCV stuff (opening it invokes the use of several OpenCV manipulations on the picture), it crashes.
I ran windeployqt from the Developer Command Prompt for VS 2017 successfully. It didn't copy the OpenCV dlls next to my executable, though, so I copied opencv_world400.dll and opencv_ffmpeg400_64.dll next to the other dlls. I assume this is the step where I'm missing something.
The folder looks like this now:
I'm using VS2017 with Qt5.10.1 and OpenCV4.0. I don't think I can insert relevant code as the project is quite big and it uses OpenCV functionality extensively.
c++ qt opencv deployment release
asked Jan 4 at 2:39
toutecrimsontoutecrimson
544
add a comment |
I'm trying to deploy my C++ program. Every functionality of it works if I run the program from the VS IDE (release mode). When I ordinarily run the same executable, the main window comes up fine and its non-OpenCV functionality works; but when I try to open a picture and have the program use OpenCV stuff (opening it invokes the use of several OpenCV manipulations on the picture), it crashes.
I ran windeployqt from the Developer Command Prompt for VS 2017 successfully. It didn't copy the OpenCV dlls next to my executable, though, so I copied opencv_world400.dll and opencv_ffmpeg400_64.dll next to the other dlls. I assume this is the step where I'm missing something.
The folder looks like this now:
I'm using VS2017 with Qt5.10.1 and OpenCV4.0. I don't think I can insert relevant code as the project is quite big and it uses OpenCV functionality extensively.
c++ qt opencv deployment release
asked Jan 4 at 2:39
toutecrimsontoutecrimson
544
Have you tried running it through Dependency Walker to see if there's any missing DLLs?
– MrEricSir
Jan 4 at 4:09
Yes, but once I open it in Dependency Walker the app doesn't respond.
– toutecrimson
Jan 4 at 5:12
I use Opencv 3.4 with above configuration and had faced similar issue. The problem was, I had not copied opencv .exes like opencv_version.exe , opencv_createsamples.exe. In short, try copying everything in the bin folder next to your qt application
– Anonymous
Jan 4 at 8:44
Thanks, but this didn't solve the problem either.
– toutecrimson
Jan 5 at 18:04
add a comment |
I'm trying to deploy my C++ program. Every functionality of it works if I run the program from the VS IDE (release mode). When I ordinarily run the same executable, the main window comes up fine and its non-OpenCV functionality works; but when I try to open a picture and have the program use OpenCV stuff (opening it invokes the use of several OpenCV manipulations on the picture), it crashes.
I ran windeployqt from the Developer Command Prompt for VS 2017 successfully. It didn't copy the OpenCV dlls next to my executable, though, so I copied opencv_world400.dll and opencv_ffmpeg400_64.dll next to the other dlls. I assume this is the step where I'm missing something.
The folder looks like this now:
I'm using VS2017 with Qt5.10.1 and OpenCV4.0. I don't think I can insert relevant code as the project is quite big and it uses OpenCV functionality extensively.
c++ qt opencv deployment release
asked Jan 4 at 2:39
toutecrimsontoutecrimson
544
I'm trying to deploy my C++ program. Every functionality of it works if I run the program from the VS IDE (release mode). When I ordinarily run the same executable, the main window comes up fine and its non-OpenCV functionality works; but when I try to open a picture and have the program use OpenCV stuff (opening it invokes the use of several OpenCV manipulations on the picture), it crashes.
I ran windeployqt from the Developer Command Prompt for VS 2017 successfully. It didn't copy the OpenCV dlls next to my executable, though, so I copied opencv_world400.dll and opencv_ffmpeg400_64.dll next to the other dlls. I assume this is the step where I'm missing something.
The folder looks like this now:
I'm using VS2017 with Qt5.10.1 and OpenCV4.0. I don't think I can insert relevant code as the project is quite big and it uses OpenCV functionality extensively.
c++ qt opencv deployment release
c++ qt opencv deployment release
asked Jan 4 at 2:39
toutecrimsontoutecrimson
544
asked Jan 4 at 2:39
toutecrimsontoutecrimson
544
asked Jan 4 at 2:39
toutecrimsontoutecrimson
544
asked Jan 4 at 2:39
toutecrimsontoutecrimson
544
asked Jan 4 at 2:39
toutecrimsontoutecrimson
544
544
Have you tried running it through Dependency Walker to see if there's any missing DLLs?
– MrEricSir
Jan 4 at 4:09
Yes, but once I open it in Dependency Walker the app doesn't respond.
– toutecrimson
Jan 4 at 5:12
I use Opencv 3.4 with above configuration and had faced similar issue. The problem was, I had not copied opencv .exes like opencv_version.exe , opencv_createsamples.exe. In short, try copying everything in the bin folder next to your qt application
– Anonymous
Jan 4 at 8:44
Thanks, but this didn't solve the problem either.
– toutecrimson
Jan 5 at 18:04
add a comment |
Have you tried running it through Dependency Walker to see if there's any missing DLLs?
– MrEricSir
Jan 4 at 4:09
Yes, but once I open it in Dependency Walker the app doesn't respond.
– toutecrimson
Jan 4 at 5:12
I use Opencv 3.4 with above configuration and had faced similar issue. The problem was, I had not copied opencv .exes like opencv_version.exe , opencv_createsamples.exe. In short, try copying everything in the bin folder next to your qt application
– Anonymous
Jan 4 at 8:44
Thanks, but this didn't solve the problem either.
– toutecrimson
Jan 5 at 18:04
Have you tried running it through Dependency Walker to see if there's any missing DLLs?
– MrEricSir
Jan 4 at 4:09
Have you tried running it through Dependency Walker to see if there's any missing DLLs?
– MrEricSir
Jan 4 at 4:09
Yes, but once I open it in Dependency Walker the app doesn't respond.
– toutecrimson
Jan 4 at 5:12
Yes, but once I open it in Dependency Walker the app doesn't respond.
– toutecrimson
Jan 4 at 5:12
I use Opencv 3.4 with above configuration and had faced similar issue. The problem was, I had not copied opencv .exes like opencv_version.exe , opencv_createsamples.exe. In short, try copying everything in the bin folder next to your qt application
– Anonymous
Jan 4 at 8:44
I use Opencv 3.4 with above configuration and had faced similar issue. The problem was, I had not copied opencv .exes like opencv_version.exe , opencv_createsamples.exe. In short, try copying everything in the bin folder next to your qt application
– Anonymous
Jan 4 at 8:44
Thanks, but this didn't solve the problem either.
– toutecrimson
Jan 5 at 18:04
Thanks, but this didn't solve the problem either.
– toutecrimson
Jan 5 at 18:04
add a comment |
1 Answer
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I figured it out, the problem was unrelated to OpenCV (opencv_world400.dll was sufficient to copy into the folder).
The problem was: I used Qt's applicationDirPath(), which returns the executable's path, to access a Results folder I was supposed to have previously created there, but did not. The program, if ran from VS, was accessing the existing Results folder in the Debug folder, even though I was running the program in release mode and applicationDirPath() was returning the executable's path in the Release folder. When I was running the same executable ordinarily, it couldn't find the Results folder and crashed.
answered Jan 6 at 19:13
toutecrimsontoutecrimson
544
add a comment |
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1 Answer
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I figured it out, the problem was unrelated to OpenCV (opencv_world400.dll was sufficient to copy into the folder).
The problem was: I used Qt's applicationDirPath(), which returns the executable's path, to access a Results folder I was supposed to have previously created there, but did not. The program, if ran from VS, was accessing the existing Results folder in the Debug folder, even though I was running the program in release mode and applicationDirPath() was returning the executable's path in the Release folder. When I was running the same executable ordinarily, it couldn't find the Results folder and crashed.
answered Jan 6 at 19:13
toutecrimsontoutecrimson
544
add a comment |
I figured it out, the problem was unrelated to OpenCV (opencv_world400.dll was sufficient to copy into the folder).
The problem was: I used Qt's applicationDirPath(), which returns the executable's path, to access a Results folder I was supposed to have previously created there, but did not. The program, if ran from VS, was accessing the existing Results folder in the Debug folder, even though I was running the program in release mode and applicationDirPath() was returning the executable's path in the Release folder. When I was running the same executable ordinarily, it couldn't find the Results folder and crashed.
answered Jan 6 at 19:13
toutecrimsontoutecrimson
544
add a comment |
I figured it out, the problem was unrelated to OpenCV (opencv_world400.dll was sufficient to copy into the folder).
The problem was: I used Qt's applicationDirPath(), which returns the executable's path, to access a Results folder I was supposed to have previously created there, but did not. The program, if ran from VS, was accessing the existing Results folder in the Debug folder, even though I was running the program in release mode and applicationDirPath() was returning the executable's path in the Release folder. When I was running the same executable ordinarily, it couldn't find the Results folder and crashed.
answered Jan 6 at 19:13
toutecrimsontoutecrimson
544
I figured it out, the problem was unrelated to OpenCV (opencv_world400.dll was sufficient to copy into the folder).
The problem was: I used Qt's applicationDirPath(), which returns the executable's path, to access a Results folder I was supposed to have previously created there, but did not. The program, if ran from VS, was accessing the existing Results folder in the Debug folder, even though I was running the program in release mode and applicationDirPath() was returning the executable's path in the Release folder. When I was running the same executable ordinarily, it couldn't find the Results folder and crashed.
answered Jan 6 at 19:13
toutecrimsontoutecrimson
544
answered Jan 6 at 19:13
toutecrimsontoutecrimson
544
answered Jan 6 at 19:13
toutecrimsontoutecrimson
544
answered Jan 6 at 19:13
toutecrimsontoutecrimson
544
544
add a comment |
add a comment |
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Have you tried running it through Dependency Walker to see if there's any missing DLLs?
– MrEricSir
Jan 4 at 4:09
Yes, but once I open it in Dependency Walker the app doesn't respond.
– toutecrimson
Jan 4 at 5:12
I use Opencv 3.4 with above configuration and had faced similar issue. The problem was, I had not copied opencv .exes like opencv_version.exe , opencv_createsamples.exe. In short, try copying everything in the bin folder next to your qt application
– Anonymous
Jan 4 at 8:44
Thanks, but this didn't solve the problem either.
– toutecrimson
Jan 5 at 18:04